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Windows 7: Western Digital Ext. HArd drive wont show up.

14 Jan 2011   #1
juaxoo

Windows 7 Ultimate 32bit
 
 
Western Digital Ext. HArd drive wont show up.

I have to western Digital external hard drives and when I plug them both in to my computer at the same time, only one of them shows up in "My Computer". I have to keep plugging them in one after another to get the other to pop up. I have to transfer data from one drive t o the other but I can't do so because they won't appear at the same time.

When I go to Device Manger they both appear there but only the first drive that was plugged in is accessible.

Any one have any answers?


My System SpecsSystem Spec
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14 Jan 2011   #2
MadHacker

Windows 7 Professional 64 bit
 
 

if they're external drives without a separate power source, you may not be getting enough power from the USB ports to run both simultaneously
My System SpecsSystem Spec
14 Jan 2011   #3
juaxoo

Windows 7 Ultimate 32bit
 
 

They both run on their own power cable to the wall outlet
My System SpecsSystem Spec
.

14 Jan 2011   #4
MadHacker

Windows 7 Professional 64 bit
 
 

Not sure what kind of computer you're using, but if it's a desktop with front and rear USB ports, try connecting one to the front and the other to the back, anything but adjacent ports.
My System SpecsSystem Spec
14 Jan 2011   #5
juaxoo

Windows 7 Ultimate 32bit
 
 

I actually have a HP g60-445dx laptop with 3 USB ports. I've tried swapping out which ports I use to see if they'll pop up but it still isn't working.
My System SpecsSystem Spec
14 Jan 2011   #6
MadHacker

Windows 7 Professional 64 bit
 
 

Try a different computer. The USB hub in your laptop isn't up to the task.
My System SpecsSystem Spec
14 Jan 2011   #7
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

It is probably a capacity problem of your hub. I would copy the data first from one to the system disk and then swap the drives and copy to the other external. That may not be a lot slower because you avoid interference on the hub. And enable write caching in Device Manager > Properties > Policies.
My System SpecsSystem Spec
14 Jan 2011   #8
essenbe
Microsoft MVP

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

Also, make sure they are both assigned separate drive letters.
My System SpecsSystem Spec
15 Jan 2011   #9
juaxoo

Windows 7 Ultimate 32bit
 
 

Quote   Quote: Originally Posted by essenbe View Post
Also, make sure they are both assigned separate drive letters.
I don't know why I didn't think of that before. How do you change the drive letter?
My System SpecsSystem Spec
15 Jan 2011   #10
juaxoo

Windows 7 Ultimate 32bit
 
 

Nevermind I figured out how to do that but that still didn't work
My System SpecsSystem Spec
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 Western Digital Ext. HArd drive wont show up.




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